synfig-core/trunk/src/synfig/valuenode_subtract.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuenode_subtract.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: valuenode_subtract.cpp,v 1.1.1.1 2005/01/04 01:23:15 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include "general.h"
  32 #include "valuenode_subtract.h"
  33 #include "valuenode_const.h"
  34 #include <stdexcept>
  35 #include "color.h"
  36 #include "vector.h"
  37 #include "angle.h"
  38 #include "real.h"
  39
  40 #endif
  41
  42 /* === U S I N G =========================================================== */
  43
  44 using namespace std;
  45 using namespace etl;
  46 using namespace synfig;
  47
  48 /* === M A C R O S ========================================================= */
  49
  50 /* === G L O B A L S ======================================================= */
  51
  52 /* === P R O C E D U R E S ================================================= */
  53
  54 /* === M E T H O D S ======================================================= */
  55
  56 synfig::ValueNode_Subtract::ValueNode_Subtract():LinkableValueNode(synfig::ValueBase::TYPE_NIL)
  57 {
  58         set_scalar(1.0);
  59 }
  60
  61 LinkableValueNode*
  62 ValueNode_Subtract::create_new()const
  63 {
  64         return new ValueNode_Subtract();
  65 }
  66
  67 ValueNode_Subtract*
  68 ValueNode_Subtract::create(const ValueBase& x)
  69 {
  70         ValueBase::Type id(x.get_type());
  71
  72         ValueNode_Subtract* value_node=new ValueNode_Subtract();
  73         switch(id)
  74         {
  75         case ValueBase::TYPE_NIL:
  76                 return value_node;
  77         case ValueBase::TYPE_VECTOR:
  78         case ValueBase::TYPE_REAL:
  79         case ValueBase::TYPE_INTEGER:
  80         case ValueBase::TYPE_ANGLE:
  81                 value_node->set_link("rhs",ValueNode_Const::create(ValueBase(id)));
  82                 value_node->set_link("lhs",ValueNode_Const::create(ValueBase(id)));
  83                 assert(value_node->get_rhs()->get_type()==id);
  84                 assert(value_node->get_lhs()->get_type()==id);
  85                 break;
  86         default:
  87                 assert(0);
  88                 throw runtime_error("synfig::ValueNode_Subtract:Bad type "+ValueBase::type_name(id));
  89         }
  90         assert(value_node->get_type()==id);
  91
  92         return value_node;
  93 }
  94
  95 synfig::ValueNode_Subtract::~ValueNode_Subtract()
  96 {
  97         unlink_all();
  98 }
  99
 100 void
 101 ValueNode_Subtract::set_scalar(Real x)
 102 {
 103         set_link("scalar",ValueNode_Const::create(x));
 104 }
 105
 106 bool
 107 synfig::ValueNode_Subtract::set_scalar(ValueNode::Handle x)
 108 {
 109         if(x->get_type()!=ValueBase::TYPE_REAL&& !PlaceholderValueNode::Handle::cast_dynamic(x))
 110                 return false;
 111         scalar=x;
 112         return true;
 113 }
 114
 115 bool
 116 synfig::ValueNode_Subtract::set_lhs(ValueNode::Handle a)
 117 {
 118         ref_a=a;
 119
 120         if(PlaceholderValueNode::Handle::cast_dynamic(a))
 121                 return true;
 122
 123         if(!ref_a || !ref_b)
 124                 set_type(ValueBase::TYPE_NIL);
 125         else
 126         if(ref_a->get_type()==ValueBase::TYPE_VECTOR && ref_a->get_type()==ValueBase::TYPE_VECTOR)
 127                 set_type(ValueBase::TYPE_VECTOR);
 128         else
 129         if(ref_a->get_type()==ValueBase::TYPE_REAL && ref_a->get_type()==ValueBase::TYPE_REAL)
 130                 set_type(ValueBase::TYPE_REAL);
 131         else
 132         if(ref_a->get_type()==ValueBase::TYPE_INTEGER && ref_a->get_type()==ValueBase::TYPE_INTEGER)
 133                 set_type(ValueBase::TYPE_INTEGER);
 134         else
 135         if(ref_a->get_type()==ValueBase::TYPE_ANGLE && ref_a->get_type()==ValueBase::TYPE_ANGLE)
 136                 set_type(ValueBase::TYPE_ANGLE);
 137         else
 138         if(ref_a->get_type()==ValueBase::TYPE_COLOR && ref_a->get_type()==ValueBase::TYPE_COLOR)
 139                 set_type(ValueBase::TYPE_COLOR);
 140         else
 141         {
 142                 synfig::warning(get_id()+":(set_a):"+strprintf(_("Types seem to be off for ValueNodes %s and %s"),ref_a->get_id().c_str(),ref_b->get_id().c_str()));
 143                 set_type(ValueBase::TYPE_NIL);
 144         }
 145
 146         return true;
 147 }
 148
 149 bool
 150 synfig::ValueNode_Subtract::set_rhs(ValueNode::Handle b)
 151 {
 152         ref_b=b;
 153
 154         if(PlaceholderValueNode::Handle::cast_dynamic(b))
 155                 return true;
 156
 157         if(!ref_a || !ref_b)
 158                 set_type(ValueBase::TYPE_NIL);
 159         else
 160         if(ref_a->get_type()==ValueBase::TYPE_VECTOR && ref_a->get_type()==ValueBase::TYPE_VECTOR)
 161                 set_type(ValueBase::TYPE_VECTOR);
 162         else
 163         if(ref_a->get_type()==ValueBase::TYPE_REAL && ref_a->get_type()==ValueBase::TYPE_REAL)
 164                 set_type(ValueBase::TYPE_REAL);
 165         else
 166         if(ref_a->get_type()==ValueBase::TYPE_INTEGER && ref_a->get_type()==ValueBase::TYPE_INTEGER)
 167                 set_type(ValueBase::TYPE_INTEGER);
 168         else
 169         if(ref_a->get_type()==ValueBase::TYPE_ANGLE && ref_a->get_type()==ValueBase::TYPE_ANGLE)
 170                 set_type(ValueBase::TYPE_ANGLE);
 171         else
 172         if(ref_a->get_type()==ValueBase::TYPE_COLOR && ref_a->get_type()==ValueBase::TYPE_COLOR)
 173                 set_type(ValueBase::TYPE_COLOR);
 174         else
 175         {
 176                 synfig::warning(get_id()+":(set_b):"+strprintf(_("Types seem to be off for ValueNodes %s and %s"),ref_a->get_id().c_str(),ref_b->get_id().c_str()));
 177                 set_type(ValueBase::TYPE_NIL);
 178         }
 179
 180         return true;
 181 }
 182
 183 synfig::ValueBase
 184 synfig::ValueNode_Subtract::operator()(Time t)const
 185 {
 186         if(!ref_a || !ref_b)
 187                 throw runtime_error(strprintf("ValueNode_Subtract: %s",_("One or both of my parameters aren't set!")));
 188         else
 189         if(get_type()==ValueBase::TYPE_VECTOR)
 190                 return ((*ref_a)(t).get(Vector())-(*ref_b)(t).get(Vector()))*(*scalar)(t).get(Real());
 191         else
 192         if(get_type()==ValueBase::TYPE_REAL)
 193                 return ((*ref_a)(t).get(Vector::value_type())-(*ref_b)(t).get(Vector::value_type()))*(*scalar)(t).get(Real());
 194         else
 195         if(get_type()==ValueBase::TYPE_INTEGER)
 196                 return ((*ref_a)(t).get(int())-(*ref_b)(t).get(int()))*(*scalar)(t).get(Real());
 197         else
 198         if(get_type()==ValueBase::TYPE_ANGLE)
 199                 return ((*ref_a)(t).get(Angle())-(*ref_b)(t).get(Angle()))*(*scalar)(t).get(Real());
 200         else
 201         if(get_type()==ValueBase::TYPE_COLOR)
 202                 return ((*ref_a)(t).get(Color())-(*ref_b)(t).get(Color()))*(*scalar)(t).get(Real());
 203
 204         synfig::error(get_id()+':'+strprintf(_("Cannot subtract types of %s and %s"),ValueBase::type_name(ref_a->get_type()).c_str(),ValueBase::type_name(ref_b->get_type()).c_str()));
 205         return ValueBase();
 206 }
 207
 208 bool
 209 ValueNode_Subtract::set_link_vfunc(int i,ValueNode::Handle x)
 210 {
 211         assert(i>=0 && i<3);
 212         switch(i)
 213         {
 214                 case 0:
 215                         if(set_lhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
 216                         else { return false; }
 217                 case 1:
 218                         if(set_rhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
 219                         else { return false; }
 220                 case 2:
 221                         scalar=x;
 222                         signal_child_changed()(i);signal_value_changed()();
 223                         return true;
 224         }
 225
 226         return false;
 227 }
 228
 229 ValueNode::LooseHandle
 230 ValueNode_Subtract::get_link_vfunc(int i)const
 231 {
 232         assert(i>=0 && i<3);
 233         switch(i)
 234         {
 235                 case 0:
 236                         return ref_a;
 237                 case 1:
 238                         return ref_b;
 239                 case 2:
 240                         return scalar;
 241         }
 242         return 0;
 243 }
 244
 245 int
 246 ValueNode_Subtract::link_count()const
 247 {
 248         return 3;
 249 }
 250
 251 String
 252 ValueNode_Subtract::link_local_name(int i)const
 253 {
 254         assert(i>=0 && i<3);
 255         switch(i)
 256         {
 257                 case 0:
 258                         return _("LHS");
 259                 case 1:
 260                         return _("RHS");
 261                 case 2:
 262                         return _("Scalar");
 263         }
 264         return String();
 265 }
 266
 267 String
 268 ValueNode_Subtract::link_name(int i)const
 269 {
 270         assert(i>=0 && i<3);
 271         switch(i)
 272         {
 273                 case 0:
 274                         return "lhs";
 275                 case 1:
 276                         return "rhs";
 277                 case 2:
 278                         return "scalar";
 279         }
 280         return String();
 281 }
 282
 283 int
 284 ValueNode_Subtract::get_link_index_from_name(const String &name)const
 285 {
 286         if(name=="lhs")
 287                 return 0;
 288         if(name=="rhs")
 289                 return 1;
 290         if(name=="scalar")
 291                 return 2;
 292         throw Exception::BadLinkName(name);
 293 }
 294
 295 String
 296 ValueNode_Subtract::get_name()const
 297 {
 298         return "subtract";
 299 }
 300
 301 String
 302 ValueNode_Subtract::get_local_name()const
 303 {
 304         return _("Subtract");
 305 }
 306
 307 bool
 308 ValueNode_Subtract::check_type(ValueBase::Type type)
 309 {
 310         return type==ValueBase::TYPE_VECTOR
 311                 || type==ValueBase::TYPE_REAL
 312                 || type==ValueBase::TYPE_INTEGER
 313                 || type==ValueBase::TYPE_COLOR
 314                 || type==ValueBase::TYPE_ANGLE;
 315 }